Perimeter of a Figure

Perimeter of a figure is explained here.

Perimeter is the total length of the boundary of a closed figure.

The perimeter of a simple closed figure is the sum of the measures of line-segments which have surrounded the figure.

Perimeter of a Figure

Perimeter of ∆ABC = length (AB + BC + CA)

Perimeter of the quadrilateral DEKN = length (DE + EK + KN + ND)

Perimeter of the hexagon PQRSTU = length (PQ + QR + RS + ST + TU + UP)

The perimeter of a circle is the measure of its circumference. The perimeter of the circle of center O is its circumference.

Perimeter of a Figure

Ken walks around a playground in his daily morning walk. How far does he walk every morning? The playground is of the shape of a quadrilateral having sides of length 112 m, 85 m, 69 m and 102 m.

Solution:

Perimeter of a Figure

Perimeter of the playground

                   = 112 m + 85 m + 69 m + 102 m

                   = 368m

Ken walks 368 m around the playground, i.e. around the perimeter, every morning.

Related Concepts

Units for Measuring Length

Measuring Instruments

To Measure the Length of a Line-segment

Perimeter of a Figure

Unit of Mass or Weight

Examples on Unit of Mass or Weight

Units for The Measurement of Capacity

Examples on Measurement of Capacity

Measurement of Time

Read a Watch or a Clock

Antemeridian (a.m.) or Postmeridian (p.m.)

What Time it is?

Time in Hours and Minutes

24 Hour Clock

Units of Time

Examples Units of Time

Time Duration

Calendar

Reading and Interpreting a Calendar

Calendar Guides us to Know


4th Grade Math Activities

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